自动洗衣机行星轮系减速器的设计.doc

河南城建学院
2013届本科毕业论文(设计)
自动洗衣机行星轮系减速器的设计
学生姓名:张还
所在系别: 机械工程系
所学专业:机械设计制造及其自动化
导师姓名:李建
完成时间: 2013-6-5
摘要
行星轮系减速器较普通齿轮减速器具有体积小、重量轻、效率高及传递功率范围大等优点,逐渐获得广泛应用。同时它的缺点是:材料优质、结构复杂、制造精度要求较高、安装较困难些、设计计算也较一般减速器复杂。但随着人们对行星传动技术进一步的深入地了解和掌握以及对国外行星传动技术的引进和消化吸收,从而使其传动结构和均载方式都不断完善,同时生产工艺水平也不断提高,完全可以制造出较好的行星齿轮传动减速器。
根据负载情况进行一般的齿轮强度、几何尺寸的设计计算,然后要进行传动比条件、同心条件、装配条件、相邻条件的设计计算,由于采用的是多个行星轮传动,还必须进行均载机构及浮动量的设计计算。
行星齿轮传动根据基本够件的组成情况可分为:2K—H、3K、及K—H—V三种。若按各对齿轮的啮合方式,又可分为:NGW型、NN型、WW型、WGW型、NGWN型和N型等。N表示内啮合,W表示外啮合,G表示内外啮合公用行星轮。本文所设计的行星齿轮是2K—H行星传动NGW型。
关键词:减速器、齿轮强度
Abstract
Department of ary gear pared with ordinary gear reducer has the advantages of small size, light weight, high efficiency and transmission power range, and gradually widely available. While its disadvantages are: high-quality materials, complex structure, high precision manufacturing, installation more difficult, complex design calculations than the average reducer. But with the ary transmission technology for further in-depth understanding and mastery , as well as the introduction and digestion and absorption of foreign ary transmission technology , transmission structure and are contained way so that it continues to improve, the level of production technology is also rising , can create a better ary gear reducer .
According to the load gear strength, the geometry of the design calculations, and then the transmission ratio conditions, concentric conditions, assembly conditions, adjacent design are set, due to the use of a plurality of ary gear drive; you must also institutions and floating amount of design calculations.
The ary gear transmission according enough basic member of position can be divided into: 2K-H, 3K, and the three K-H - V. The gear meshing, can be divided into: NGW type, NN, WW, the WGW type, NGWN -type and N-type. N represents the internal meshing , W the outer meshing , G represents the inner and outer mon wheel .This article is designed ary gear 2K-H ary transmission NGW type .
Key words: Gear